<template>
  <div class="login-container">
    <div class="login-box">
      <!-- 图像区域 -->
      <div class="avatar-box">
        <img src="../assets/logo.png" />
      </div>
      <!-- 登录表单区域 -->
      <el-form ref='loginRef' :model='loginForm' :rules='loginRules' label-width="0px" class="login-form">
        <el-form-item prop='username'>
          <el-input v-model='loginForm.username'  prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <el-form-item prop='password'>
          <el-input v-model='loginForm.password'  prefix-icon="iconfont icon-3702mima"></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click='login'>登录</el-button>
          <el-button type="info" @click='resetLogin'>重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'aaa',
        password: '123456'
      },
      // 表单规则验证
      loginRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 5, message: '请输入3-5个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入用户登录密码', trigger: 'blur' },
          { min: 6, max: 10, message: '请输入6-8位密码', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLogin () {
      this.$refs.loginRef.resetFields()
    },
    login () {
      this.$refs.loginRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('./home')
      })
    }
  }
}
</script>

<style lang='less' scoped>
.login-container {
  background-color: #2b4b6b;
  height: 100%;
}
.login-box {
  height: 300px;
  width: 450px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar-box {
  height: 130px;
  width: 130px;
  background-color: #fff;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #eee;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
}
img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #eee;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
.login-form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>
